Re: Mechanical camera - need advice
Posted: Sun Jul 07, 2019 10:13 am
Harry Dalek wrote:smeezekitty wrote:Harry Dalek wrote:
I was thinking; since we use an LED array behind a defuser for mechanical displays, why can't one do the opposite for a mechanical camera. That is, have an array of phototransistors in parallel behind a defuser?
That had crossed my mind as well and i can't say i have heard of any one trying it out ,i would think it would work apart from any problems hooking them up in parallel or series,only thing its easier to just use a small solar cell sensitive enough have the bandwidth ..they have the surface area size spot on for a nipkow disk scan ...found in toys ,solar lights or buy new .
i haven't tried a single photo transistor in a nipkow just sstv tv camera scanning i just know you need to focus the scan down to its surface ...try to avoid optics part as much as a can .
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I tried a solar cell but I actually got worse results because the signal/noise ratio was poorer. Maybe once I build a better headamp it will work.
I would think that I could just put them straight in parallel? I'm not sure. Only way to know is to try.
I unfortunately don't have access to as large of repertoire of photo sensitive components as you do.
In case anyone is interested, I am uploading some of the programs I am using to process my NBTV. They're command line and kind of taylor made for what I'm working with but maybe someone will find them useful regardless.